Installation and cover device for cables and methods for installation thereof

ABSTRACT

The present invention relates to an installation device for cables ( 6 ) that are to be laid along walls, with cable holders ( 5 ) and a cover ( 10 ). The present invention makes provision such that  
     the cover ( 10 ) is configured as a cable cover profile strip ( 1 ) with a front cover strip ( 2 ) and side cover strips ( 3 ) that extend from its two side edges ( 201 ), which can be wound on to a winding body and then unwound from same in order to be installed;  
     the two side cover strips ( 3 ) are connected to the front cover strip ( 2 ) through a folding or hinged connection;  
     in the wound-on state (LT), the two side cover strips are folded inward with their unattached side edges ( 301 ) facing each other, and extending in the same direction as the front cover strip ( 2 ); and  
     in that each of the two side cover strips ( 3 ) can be moved into the installation position (MA) by being folded away from the front cover strip ( 2 ), transversely to the longitudinal dimension of said front cover strip ( 2 ).

[0001] The present invention relates to a new installation and coverdevice for cables or cable sets for telephone lines, data-transmissionlines, electrical cables, and the like, in particular glass fiber orfiber optics cables or cable sets that are to be laid along walls,partitions, ceilings and the like, in particular underground pipes,arches, tunnels, sewers, or shafts, with cable holders that are spacedapart on said walls or partitions, ceilings, or the like, and with acover that can be attached on or to the same, and which essentiallyencloses the cable or cable set.

[0002] In recent years, the great rate of growth in the area ofinformation technology and telecommunications, as well as everincreasing demands for energy, have necessitated the large-scaleexpansion of transmission lines and cables for the most varied types,and their interconnection.

[0003] To a large extent, laying the lines or cables for the purposesset out above, even in areas with few obstacles to construction, is nolonger done with overhead lines that are vulnerable to damage caused bythe weather but rather, whenever possible, with underground lines; eventhough the excavation that this entails is relatively costly, such linesare not disrupted by other infrastructure, buildings, groundinstallations or the like.

[0004] It was, and is, much more difficult to lay lines of this kindbeneath the surface in densely populated urban areas, when disruption oftraffic flows is the only serious disadvantage that must be taken intoconsideration.

[0005] Optical fiber or glass fiber cable are significant factors whenconstructing cable systems and data networks having high transmissiondensities and rates, and several years ago a start was made to avoid, asfar as possible, the excavation and construction operations needed toinstall such cables and to use existing underground infrastructure forutilities and waste-disposal networks, in particular sewer networks, fortheir installation. In the mean time, not only data-transmission,control, and information-bearing cables, but also high-voltage lines,are being laid in underground sewer networks in various major cities.

[0006] The major advantage of this relatively new kind of installationis the fact that it is no longer necessary to break open the ground,with the concomitant destruction of essential road surface areas andpavement, and the significant disruption of pedestrian and vehiculartraffic, in order to lay a cable or cable sets, with all theirundesirable consequences; this results in considerable cost savingsdespite relatively higher flexibility with respect to the section thatis to be installed.

[0007] It goes without saying that one important requirement remains;namely, that the installation technology in the underground utilitiesand disposal systems entails the lowest possible cost and that rapidinstallation is possible under the difficult conditions that prevail insewer networks.

[0008] The technique for laying cables and cable sets that has beencustomary up to now is, in essence, to attach cable holders with tray ordish-like receptacles for holding or clamping the cable that is to beinstalled to the walls of a structure, e.g., a tunnel or a channel, atintervals of one or two meters and then to attach cable cover plates,shrouds or the like that are of essentially rigid material, e.g.,plastic with or without glass-fiber reinforcement, and then secure thecable on these cable holders laterally on both sides and to the front.In order to make it simpler to attach these cable covers to theparticular underground installation site, and to make it easier tohandle them, these cable covers were of a relatively short installedlength, so that a large number of such cable cover plates had to besecured to the cable holders that were installed at intervals that hadto be maintained relatively precisely on the particular wall, ceiling orthe like in order to install longer cable covers. In addition to this,there is the fact that for all practical purposes, at each cable holderor at each second cable holder one cover plate butts up against the nextcover plate, so that a large number of butt joints has to be accepted,together with the associated risk of contamination.

[0009] It is the objective of the present invention to create a new typeof a cover system for cables that are installed on walls, ceilings orthe like, in particular of underground structures, such as sewersystems, with cable holders that hold the cables or cable sets and acover that is to be installed on these and encloses the cables or cablesets that have been installed. The new cable cover is to becharacterized in that the handling outlay required for installing it islow and, at the same time, the problems addressed heretofore withrespect to the large number of butt joints that have to be securedagainst loosening and the danger of contamination of these butt jointsbetween the individual cover plates that adjoin each other is minimized.

[0010] The object of the present invention is an installation and coverdevice of the type described in the introduction hereto, the essentialfeatures of which are:

[0011] that the covering is embodied as a cable cover profile strip thatcan be wound or coiled onto a winding body, in particular a drum, coil,roll, or roller, and unwound from said winding body for installationthereof, and comprising a front cover strip and side cover strips thatextend from both side edges thereof;

[0012] that the two side cover strips are connected to the front coverstrip through a folding or jointed connection, preferably through ahinged connection;

[0013] that the two side cover strips of the cable cover profile strip,when rolled up for storage and transportation, has its two unattachedside strips folded in on each other and extending in the same directionas the front cover strip or essentially parallel to the same, and

[0014] that for attaching the profile strip 1 that forms the cable coverto the cable holder as well as for the enclosing covering of cable orcable set that is held by this, each of the two side cover strips can bebrought into the installation and covering position by being folded orpivoted away from the front cover strip transversely or essentiallyperpendicular to said front cover strip.

[0015] For the first time ever, the present invention provides a type ofendless cable installation and covering system that requiressignificantly less outlay for production, transportation, logistics, andhandling.

[0016] The advantage of the present invention is that it uses a cablecover profile strip that possesses a certain material strength, althoughit is in principle only two-dimensional, instead of a large number ofcover plates or shrouds that are three dimensional and have a C-crosssection and that therefore take up a great deal of space whentransported or moved, and have to be manipulated individually on site.

[0017] One result of the present invention is that it is now onlynecessary to move a continuous cable cover profile strip that is woundon to an appropriate drum to the installation site, for example, to anaccess point to a sewer system, wind the new type of cover strip off thedrum, and then draw it out as far as the particular installation site inthe sewer system—which gets closer to the access opening in the courseof the installation work—where the side cover strips are best folded orpivoted continuously away from the front cover strip into the ultimatelythree dimensional end or installation form, which similarly has a crosssection that is more or less that of a square bracket ([). The intendedsurrounding enclosure of the cable that is laid is effected with the“continuous” cover shroud that is configured in this way, while thecontinuous cable cover is fixed on the cable holders that are spacedapart from one another.

[0018] At this point, it should be mentioned that a continuousstrip-type cable cover in which there are hinges between the coverstrips, is particularly preferred because of its great versatility andflexibility within the framework of the present invention.

[0019] In this sense, according to claim 2, an additional, advantageousembodiment of the new installation and cover device for cables or cablesets is such

[0020] that the cable cover or the profile strip that forms this isembodied with jointed connections, in particular hinged connections,between the front cover strips and the side cover strips, each suchcover strips being wound separately onto its own winding body forstorage and transportation, and

[0021] in that just prior to or during the installation of the cover tothe assembly of the cable cover profile strip that is in the assemblyand cover position MA, the three cover strips can be assembled orcombined to form the ensemble of the front cover strip and the sidecover strips that are connected flexibly to it on both sides throughhinge connections and folded away from it, in each instance transverselyto the extent of the front cover strip.

[0022] In this embodiment of the present invention, with individualcover strips that are wound on to separate winding bodies, in additionto the fact that as compared to winding on a cable cover profile stripthat is ready for installation, given a winding body of identical size,as described heretofore, approximately two to two and one-half times thelength of the individual cover strips can be accommodated, and thatcombining or assembling the cover strips that were formerly separatedfrom one another to form a finished cable cover profile strip in theframework of the manufacturing process is eliminated and the cover isapplied at the installation site, which increases its versatility.

[0023] Claim 3 gives more detailed information as to the properties ofthe material that is best used for the new cable cover profile strip; itshould be mentioned that no significant limits are imposed on thematerial that is selected, long-term stability, moisture resistance, andresistance to attack by organisms, without risk of breakage, even at lowtemperatures, being taken into account.

[0024] Polymer plastics with characteristics and physical properties asset out in claim 4 are especially preferred within the framework of thepresent invention.

[0025] Within the framework of exhaustive tests, plastics based on hardPVC were found to be particularly suitable and, at the same time, costeffective for laying cables and their covers, as set out in claim 5.

[0026] A hinge-type connection between the front cover strip and theside cover strips as in claim 6 can cope with the task of creating aprofile strip that can be stored, transported, and wound onto a suitablewinding body without any problems, and then transformed into athree-dimensional “continuous” cable cover shroud on site when the cableis laid.

[0027] During the course of development, an arrangement of hinge headand hinge groove of the hinge-type connection, as disclosed in claim 7,was found to be particularly advantageous for preventing susceptibilityto contamination.

[0028] Alignment of the hinge-groove-slot opening with the wall,ceiling, or the like, or to the cable that is to be covered, asdisclosed in claim 8, is similarly advantageous with respect to thedanger of contamination, as discussed heretofore.

[0029] Hinge grooves as in claim 8, which are essentially of C-crosssection are advantageous.

[0030] Claim 10 discloses a simple embodiment of the hinge head on eachof the two side cover strips as a roller that can rotate and slide inthe hinge groove.

[0031] An additional variant of the embodiment of the hinge head on eachof the side cover strips, with a cross section similar to a nail head,as in claim 11, entails the advantage of improved threading or insertionwhen combining the side cover strips with the front cover strip to forma cable cover strip that is ready for use. In addition, this alsoensures an enlarged angle of pivot for the side cover strips to thefront cover strip, as well as greater flexibility of the overall cablecover profile strip; this makes it easier to wind it on to the drum andwind it off said drum when on site or close to the installation site.

[0032] As is described in claim 12, it is preferred that the surfaces ofthe hinge head that slide on one another on the particular side coverstrips and the hinge grooves on the front cover strip be cylindricalsurfaces.

[0033] What applies to the shaft or neck that joins the nail-like hingehead to the side cover strips is the outward curved shape of the same,as described in claim 13 for an external shape of the new cover that isfor all practical purposes free of notches or slits and thus lessvulnerable to contamination.

[0034] In this sense, as is set out in claim 14, the adaptation of thecurvature of the hinge head-neck portion and of the outer edge area ofthe particular hinge groove of the front cover strip is alsoadvantageous.

[0035] As is set out in claim 15, a matching between the cross sectionshape of the hinge head of the side cover strip and the hinge groove ofthe front cover strip, as well as between the hinge groove slot and thehinge head neck portion, which limits the amount to which the particularside cover strip can be pivoted outward is advantageous since, in thisway, a kind of pretensionng is achieved when the cable that is laid iscovered with the new cable cover strip that is unfolded or pivoted outinto the third dimension during installation, so that it locks behindthe cable and thereby ensures that the cable can be additionally held bythe cable.

[0036] Claim 16 sets out the preferred details individually.

[0037] The stiffening strip of the side cover strips that is describedin claim 17 enhances the mechanical stability of the installed cablecover strip, one advantage of which that is to be stressed is itsfunction as a kind of suspension element for the cover on the cable thathas already been laid, as in claim 18.

[0038] Claim 19 and claim 20 state that the front cover strip of the newcable cover profile strip has on its front side a flat, relativelybroad, groove the permits the arrangement and rapid positioning of theabutting ends of the new cover profile strips, at the junction of whichthey overlap, and also permits its stable fixing without the danger ofthe installation on the cable holders becoming loose.

[0039] Particularly preferred is a type of attachment of the new cablecover profile strip on the cable holders by way of a snap-in or detentprofile on the back of the front cover strip according to claim 21.

[0040] An embodiment according to claim 22 is an additional importantcomponent of the new cable holder and cable device.

[0041] Claim 23 provides details of the new cable holder that areadvantageous for the stability of the way the cable or cable set isheld.

[0042] No significant limits are imposed on the type of stableconnection of the new cover profile strip in the installation-ready,three dimensional form with the cable holders for routing the cable.Thus, all type of installation that require the lowest possible outlayare possible, especially those such as spring snap-on, latch, or clipconnections.

[0043] Especially preferred within the context of the present inventionis a snap or latch connection of this kind that is arranged at thelongitudinal centre between the cable cover profile strip and the cableholders, as in claim 24.

[0044] In order to secure the cable holders to the walls, ceilings orthe like of underground structures, in particular of a sewer system, acentral screw-in connection as in claim 25 has been shown to be lesslabour intensive and at the same time perfectly adequate for thelong-term stability of the holders.

[0045] According to claim 26, rapid and stable fixing of the cover stripends at those places where they abut against each other and whichensures that the snap connections between the cable cover profile stripand the cable holders will not become loose, can be achieved with slots,which do not demand precise positioning of the attachment screws for thejoint cover plates that bridge the butt connections, said slots beingintended for the introduction of self-tapping screws that pass throughthe aforesaid joint cover plates and are anchored in the sides of saidslots on both sides of the central attachment of the cable holder on thewall, ceiling, or the like.

[0046] It is also an advantage if, as provided or in claim 27, the cableholder has eyelets, tabs, hooks, openings, or the like for anchoring thecable clips for fixing the cable.

[0047] Not least, it is an advantage if, as in claim 28, there is on thecable holder a type of indicator for the point where the middle orcentral holding screw for attaching the cable holder to the wall islocated, so that the two slots for anchoring the screw for attaching thejoint cover plates at the butt joints between adjacent cable cover stripprofiles, which are arranged on the right and on the left of the same,are accessible without any problem and without disturbing the centralattachment screw.

[0048] Claim 29 lists the classes of plastics that are preferred for thecable holders.

[0049] Finally, an additional objective of the present invention is anew method for forming the cover of an installation and cover device forcables 6 or cable sets for telephone systems, data links, electricalpower, or the like, in particular glass fiber or fiber optics cables orcable sets that are to be installed along walls, partitions, ceilings,or the like, preferably of sewer systems, with cable holders 5 that arespaced apart along said walls, partitions, ceilings, or the like, and acover 10 that can be secured on the same and which encloses the cable 6or cable set, the particular features of which have been described indetail heretofore.

[0050] According to claim 30, this method is essentially characterizedin that

[0051] the three cover strips, namely the front cover strip and the twoside cover strips, which are each wound up on to separate winding bodiessuch as drums, spools, rolls, rollers, or the like, in particular forpurposes of storage or transportation, after having been brought to thelocation at which they are to be installed or laid are wound off theirrespective winding bodies simultaneously; and in that, essentially inthe way in which a toothless, pseudo-Zip fastener is closed, the sidecover strips are preferably assembled or combined simultaneously, bypressure assisted introduction of their hinge heads through the slots ofthe two hinge grooves of the front cover strip, said slots having beenwidened elastically as a result of the pressure assembled to the coverprofile strip, preferably in its prepared state for the attachment as acover on the cable holders with the side cover strips folded away fromthe front cover strip.

[0052] The present invention will be described in greater detail belowon the basis of the drawings appended hereto. The drawings show thefollowing:

[0053]FIG. 1: A cross section through the cable holder and cover deviceaccording to the present invention, with a cable holder and a continuouscover strip arranged thereon, as a first embodiment;

[0054]FIG. 2: A cross section through the profile strip as in FIG. 1, inan embodiment with a hinge between the front cover strip and the twoside cover strips;

[0055]FIG. 3: An oblique view of a cable holder according to the presentinvention, as viewed from above;

[0056]FIG. 4: An oblique view of a butt joint on a cable holder, betweenthe two ends of two adjacent cable cover profile strips according to thepresent invention;

[0057]FIG. 5: A second embodiment of the coilable cable cover profilestrip according to the present invention, with a simple folding jointbetween the side and front cover strips that make up said cable coverprofile strip;

[0058]FIG. 6: A third form of a cable cover profile strip with a simplyconstructed hinge.

[0059] The sectional view at FIG. 1 shows a cable installation and coverdevice 100 according to the present invention; this has a cable holder 6with a base console 50 and two cable-holder dishes 56 that are arrangedin a double-C shape, in which the outline of a cable 6 with, forexample, optical fibers 61, is indicated by thin lines. The cable cover10 according to the present invention, which is described in greaterdetail in FIG. 2, comprises a cable cover profile strip 1 with a frontcover strip 2 and two side cover strips 3 that are each hinged to thefront cover strip 2 through hinge-type connections 23 along their edges.The cable cover profile strip 1 is fixed by way of a hook-in or snapconnection 28-58 with hook or snap tabs 281 to the front cover strip bycorresponding hook-in or snap latches 581 of the cable holder 5 thatwork in conjunction with the tabs 281.

[0060] A stiffening rib 31 extends inwards, facing towards the cableholder 5, from each of the side cover strips 3′ that cover the cable 6in the cover and installation configuration (AM), and it is shown how,by means of this rib 31, the two cables 6 are gripped from behind, whichis an additional factor for stabilizing the attachment of the cables.This stabilizing effect is enhanced by a pivot limit the permits only amaximum angle of pivot α in the hinge connection 23, which makes itnecessary that the side cover strips 3 bend—albeit slightly—whereby thetwo stiffening ribs 31 are pressed with a certain amount of elasticinitial tension against the cable 6, at the point where itscross-sectional curvature grows less towards the cable-holder baseconsole 50.

[0061] Also shown is a V-shaped slot 57 between the backs of the twocable dishes 56, which has on both of its two upper edges the previouslyand briefly discussed hook-in or snap-in latches 581, and from thebottom of which an attachment screw 511 or the like passes through thecentral mounting hole 51 in the cable-holder base console 50.

[0062] The edges 561, 562 of the opening 565 of the C-cross sectioncable dishes 56 are spaced apart at a distance that is somewhat lessthan the inside diameter ds of the cable dish 56 so that when the cable6 with a corresponding diameter is inserted—as shown in FIG. 1—anelastic broadening of the C opening 565 of the cable dish 56 is neededin order to install the cable 6 in the cable dish 56, which is thenfixed in position by its edges 561, 562 returning to their originalposition.

[0063] What can also be seen is that a flat-bottomed groove 2 runs downthe middle of the front cover strip 2; the function of this groove willbe described in greater detail in connection with FIG. 2; in addition,there is a projection on the base console that is an indicator 54, thefunction of which will be described in greater detail in connection withFIG. 3.

[0064]FIG. 2, which uses the same reference numbers, is a cross sectionthrough the new coilable cable cover profile strip 1 in the state whenit is wound onto a winding body prior to being installed on site in asewer or the like. In this drawing, the two side cover strips 3 arefolded inward to the front cover strip 2; the drawing also shows thepositional and connection conditions of the individual parts of thehinge connection 23 that work in conjunction with one another.

[0065] These hinge connections 23 between the front cover strip 2 andthe two side cover strips 3 are each formed by a hinge groove 25 thatextends along the side edges 201 of the front cover strip and isessentially of C-cross section, and in which the hinge head 35, whichresembles the head of a nail, of each side cover strip 3 is held so asto be able to slide and rotate. In the “folded position” LT that isshown in the drawing, which is used for transportation and storage, thehinge head 35 of each side cover strip 3 is at the end point of thissliding and rotational movement within the hinge groove 25.

[0066] In the position LT that is shown, a neck or shaft 351, which iscurved almost at a right angle downwards or outwards, extends from thehinge head 35; this passes through the outward-facing slot 251 in thehinge groove 25; its stiffening rib 31 extends almost at a right angleto touch the side cover strip 3. The unattached edges 301 of the sidecover strips 3 are so positioned that when the side cover strip ispivoted away from the front cover strip 2 they encounter the resistanceof the hook-in or snap-in tabs 281 of the front cover strip 2 that arein the way. This effectively prevents unintentional or independentfolding of the side cover strips 3 and thereby prevents any problemswith coiling up the new cable cover profile strip 1.

[0067] If the side cover strips 3 are pivoted out into the installationand cover position MA as in FIG. 1 in order to attach the new cover 1 tothe installed part, the resistance of the hook-in tabs 281, discussedheretofore, can be overcome by slightly increasing the amount of forcethat is applied when pivoting the side cover strips 3, when the tabs 281recede somewhat and thereby permit this folding action.

[0068] Reference should now be made to FIG. 1, which shows the new cablecover profile strip 1 in the installed state MA, with the hook-inconnection already completed and the side cover strips 3 sprung outward.In this position the nail head-like hinge head 35 is completely insidethe hinge groove 25, between the two edges of its slot 251. After itemerges from the groove-slot opening 251, the curvature 3511 of theshaft 351 that is angled toward the outside matches the curvature 2511of the area of the outside surface of the hinge groove 25 that isadjacent to the outside of the slot 251.

[0069] The side cover strips 3 are under some tension and theirstiffening ribs 31 press against the cables 6 where their outsidecontour has in each instance already exceeded the maximum.

[0070] The perspective view at FIG. 3 shows—using the same referencenumbers—the cable holder 5 with the double-C shaped cable dishes 56, thematching snap-in latches 581 and the middle installation opening 51.Next to this opening 51 are the elongated slots 52 that extend along thebottom 571 of the cut 57 and are made in the cable holder base console50; these slots 52 are used to anchor the screws that cut into theirsides to fix the ends of adjacent cable cover profile strips 1 in thevicinity of their butt joints.

[0071] In the same way, at the longitudinal centre, an eyelet 52protrudes forward and (not visible herein) backward; this is used tohold cable binders for fixing the cables 6. At the side (in FIG. 3, onone side only), a kind of pointer or arrowhead 54 extends outward fromthe basis console 50; this pointer indicates the position of the middleattachment opening 51 for the attachment screw 511, which passes throughthe basis console 51. This indicator is meant to ensure that the twoself-tapping screws referred to heretofore, which fix the abutting endsof two adjacent cable cover profile strips, can be inserted withouterror at a distance from this middle attachment point 51 into the abovediscussed anchoring slot 52 to the right and to the left of this centralopening 51 of the cable holder 5.

[0072] A notch, paint, luminous paint, or the like can be used insteadof the indicator 54.

[0073]FIG. 4 shows—using the same reference numbers—a butt joint 111between the two ends 11 of two adjacent cable cover profile strips 1 andhow this/these are bridged by joint cover plates 4 that are preferablyof sheet metal, these plates 4 being held in their turn by screws 415arranged to the right and left of the joint. These screws are driventhrough the plates 4 and into the slots 52 in the basis console of thecable holder 6 by their self-tapping action (see FIG. 3).

[0074]FIG. 5 shows—using the same reference numbers—another,particularly simple, embodiment of the cable cover profile strip 1according to the present invention; this is formed in one piece and canbe manufactured by an appropriate single-pass extrusion process, the twoside cover strips being connected to the front cover strip by way of aneasy bending, flexible, folding joint 23′ instead of by way of a hinge.

[0075] Using the same reference numbers, FIG. 6 is a partial view of across section through a second embodiment of the new cable cover profilestrip 1 with a very simple hinge connection 23, that is constructed onthe principle of a human joint and has a hinge head 35 that is in theform of a roller that rotates within the hinge groove 25 and essentiallyfills said groove 25.

1-30. (canceled).
 31. Installation and cover device for mounting cablesto structural walls, comprising: cable holders spaced apart on astructural wall; a cable cover configured to be attached to said cableholders and substantially enclosing the cable; said cable cover having afront cover strip and side cover strips extending from lateral edges ofsaid front cover strip, said front cover strip and said side coverstrips together forming a cable cover profile strip capable of beingwound or coiled onto a winding body and unwound from the winding bodyfor installation thereof; said side cover strips and said front coverstrip being connected through a folding or jointed connection; said sidecover strips, in a folded state when said cover is rolled up for storageand transportation, having said side cover strips folded in on eachother and extending substantially parallel to said cover strip; saidside cover strips, in an installation and covering position in whichsaid cover is in an unfolded state for attachment to said cable holders,each of said side cover strips being folded or pivoted away from saidfront cover strip transversely to said front cover strip.
 32. The deviceaccording to claim 31, wherein said side cover strips are connected tosaid front cover strip through a jointed connection.
 33. The deviceaccording to claim 31, which comprises a hinge structure connecting eachof said side cover strips to said front cover strip.
 34. The deviceaccording to claim 31, wherein: said cable cover is formed with jointedconnections between said front cover strip and said side cover strips,each of said front and side cover strips is wound separately onto arespective winding body for storage and transportation; and prior to orduring installation of said cover and assembly of said cable coverprofile strip into the installation and covering position, saidindividual cover strips are combined to form said assembly of said frontcover strip and said side cover strips flexibly connected to form saidcable cover.
 35. The device according to claim 31, wherein said coverstrips forming said cover profile strip are manufactured of a plastic orpolymer material that is substantially flexible for coiling in alongitudinal direction and that is substantially resilientlyelasto-flexible in a transverse direction.
 36. The device according toclaim 35, wherein said plastic or polymer material of said cover profilestrip possesses at least one of the following properties: Dimensionalstability (Martens) (DIN 53462) 65-70° Dimensional stability  (Vicat,Method β) (DIN 53460) 75-88° 0.16 W/km Tensile strength (DIN 53455)45-55 N/mm² Elongation after fracture (DIN 53455) 10-20%, Limitingflexural strength (DIN 53452) 80-120 N/mm², Modulus of elasticity (DIN53457) 2500-3500 N/m², Modulus of elasticity (DIN 53457) 2950-3050N/mm².
 37. The device according to claim 36, wherein said plastic orpolymer material of said cover profile strip possesses at least one ofthe following properties: Elongation after fracture (DIN 53455) 14-16%,Limiting flexural strength (DIN 53452) 90-110 N/mm² Modulus ofelasticity (DIN 53457) 2800-3200 N/mm².
 38. The device according toclaim 36, wherein said plastic or polymer material has a modulus ofelasticity of between 2950 and 3050 N/mm².
 39. The device according toclaim 31, wherein said cover strips forming said cover profile strip aremanufactured from a hard polyvinyl chloride plastic.
 40. The deviceaccording to claim 31, which comprises hinge connections between saidfront cover strip and each of said side cover strips, said hingeconnections being formed with an undercut, an open hinge groove, and ahinge head rotatable and slideable in the hinge groove.
 41. The deviceaccording to claim 40, wherein said hinge grooves are formed on saidfront cover strip and said hinge heads are formed on said side coverstrips.
 42. The device according to claim 41, wherein, when said cablecover is installed, a slot-like undercut opening of said hinge groove isoriented towards said cable holders and the cable held therein.
 43. Thedevice according to claim 40, wherein said hinge groove of said frontcover strip has a cross-sectional shape substantially of an upper-caseC.
 44. The device according to claim 40, wherein said hinge heads ofsaid side cover strips are sliding and rotating hinge rollers withsurfaces thereof on innermost sides of said hinge groove of said frontcover strip.
 45. The device according to claim 40, wherein said hingeheads slidably and rotatably disposed within said hinge grooves have across section resembling a nail head with an upper side curved convexlyto match a concave curvature of an inner surface of said hinge grooves.46. The device according to claim 45, wherein the concave curvature ofsaid hinge grooves of said front cover strip and the convex curvature ofsaid hinge heads of said side cover strips are substantially circularcurvatures match one another.
 47. The device according to claim 45,wherein an outwardly curving neck or shaft extends away from said hingehead of each of said side cover strips, said neck or shaft passingthrough a slot formed in said hinge groove of said front cover strip andangling downward into said side cover strip.
 48. The device according toclaim 47, wherein a concave side of the curvature of said shaft isformed to match the convex curvature of an outermost side of said hingegroove of an immediately adjoining area of an outermost edge of saidslot of said hinge groove of said front cover strip.
 49. The deviceaccording to claim 47, wherein said slot of said joint groove of saidfront cover strip and said nail head-like hinge head of said side coverstrip are configured to cooperate to limit an outward pivoting andfolding movement of said side cover strip up to a predetermined maximumpivot angle.
 50. The device according to claim 49, wherein said maximumpivot angle is approximately 90°.
 51. The device according to claim 49,wherein, when said side cover strip is pivoted outwardly away from saidfront cover strip in excess of the maximum pivot angle, said side coverstrip becomes insertable or supported substantially flexibly and canoptionally be snapped or latched to engage in an undercut notch formedin said cable holders.
 52. The device according to claim 49, wherein,when said side cover strip is pivoted outwardly away from said frontcover strip in excess of the maximum pivot angle, said side cover stripis insertable and mountable at a downward curvature of a wall-facingsurface of the cable.
 53. The device according to claim 31, wherein eachof said side cover strips of said cable cover profile strip has astiffening rib on an innermost side thereof extending along alongitudinal dimension of said cover strip.
 54. The device according toclaim 53, wherein said stiffening rib is mountable or supportable in asnap-in recess or an undercut notch formed in said cable holders. 55.The device according to claim 53, wherein said stiffening rib issupportable at a side of the cable facing the structure wall.
 56. Thedevice according to claim 31, wherein said front cover strip of saidcover profile strip is formed with a flat groove.
 57. The deviceaccording to claim 56, wherein said flat groove is formed at a mid-pointof said front cover strip.
 58. The device according to claim 56, whereinsaid flat groove is configured to accommodate and position a joint coverand holding plate bridging a butt joint between ends of adjacent coverprofile strips and said cover and holding plate is held in place byattachment elements to be anchored on or in said cable holder.
 59. Thedevice according to claim 58, wherein said attachment elements areself-tapping screws to be disposed on both sides of said butt joint, andsaid holding plate is formed of sheet metal
 60. The device according toclaim 31, wherein said front cover strip, on back side facing said cableholder upon mounting, has a flexible, resilient snap-in or lock-inprofile to be snapped or locked into a corresponding snap-in or lock-inprofile formed in said cable holder.
 61. The device according to claim60, wherein said snap-in or lock-in profiles each extends longitudinallyalong a center of said cable cover.
 62. The device according to claim31, wherein said cable holder is formed with two mutually symmetrictrough-like cable-holder dishes having a C-shaped cross section, andopenings of said dishes each facing outward.
 63. The device according toclaim 62, wherein said cable holder is formed with an outwardly open cutbetween said cable-holder dishes, and a section extending from said cutto a free edge of said cable-holder dish is configured to be resilientto a limited extent.
 64. The device according to claim 63, whichcomprises matching snap-in or lock-in latches formed within said cutbetween said two cable-holder dishes, said snap-in or lock-in latchesfunctioning as corresponding snap-in or lock-in latches in conjunctionwith snap-in or lock-in tabs of said cable cover profile strip.
 65. Thedevice according to claim 63, wherein bottom of said cut between saidtwo cable dishes has an installation opening formed therein passingthrough a basis console of said cable holder for securing said cableholder to the structure wall.
 66. The device according to claim 65,wherein said basis console extends along a longitudinal center of saidcable cover, and said installation opening is formed to mount said cablecover on a vertical wall, a horizontal wall, a sewer wall, a buildingwall, or a ceiling.
 67. The device according to claim 65, wherein saidbasis console of said cable holder, on both sides of said installationopening and substantially extending out from a bottom of said cutbetween said cable-holder dishes, is formed with a slot passing throughsaid basis console for anchor screws fixing the abutting ends of twocable cover strips by way of joint cover and installation plates. 68.The device according to claim 62, wherein said cable holder is formedwith at least one eyelet, a pin, or a hook for fixing a cable tie insaid cable-holder dishes.
 69. The device according to claim 68, whereinsaid cable is disposed in a cable run having a diameter smaller than adiameter of said cable-holder dishes.
 70. The device according to claim65, wherein said basis console of said cable holder has an indicatorconfigured to indicate a location of said installation opening, saidindicator being selected from the group consisting of a notch, a paintedmarker, a luminous paint marker, and a pointer protruding form saidbasis console.
 71. The device according to claim 31, wherein said cableholder is formed of plastic.
 72. The device according to claim 71,wherein said cable holder is formed of ABS.
 73. The device according toclaim 31, wherein said cable holder is formed of glass fiber-reinforcedABS.
 74. The device according to claim 31 configured to mount cablestrands of telephone lines, data-transmission lines, electrical cables,glass fiber or fiber optics cables, and cable sets to be laid alongwalls, partitions, ceilings, in underground pipes, arches, tunnels,sewers, or shafts.
 75. A method for forming a cover of an installationand cover device for cables, where the cables are to mounted in cableholders spaced apart on structure walls and a cover is attached on or tothe cable holders and substantially encloses the cable, the method whichcomprises: providing a front cover strip and side cover stripsseparately wound on winding bodies in a state for storage andtransportation; at a location at which the cover is to be laid orinstalled, commonly unwinding the front cover strip and the two sidecover strips from the winding bodies; merging edge structures of theside cover strips with the front cover strip, and pressing hinge headsformed on the side cover strips into hinge grooves of the front coverstrip, and thereby widening a slot forming an entrance into the hingegrooves elastically to assemble a cover profile strip for attachment tothe cable holders with the side cover strips folded away from the frontcover strip.
 76. The method according to claim 75, wherein the mergingstep comprises connecting the side cover strips to the front cover stripin a manner of a toothless zipper.
 77. The method according to claim 75,which comprises laying cable sets for telephone lines, data-transmissionlines, electrical cables, glass fiber or fiber optics cables, or cablesets along walls, partitions, ceilings, underground pipes, arches,tunnels, sewers, or shafts.